Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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please help me understand the following code in java on the topic: Generic Class
some questions I have is why item1 = 9999 and what is happening in this code.
![Tripleltem Manager.java:
public class TripleItemManager {
public static void main(String[] args) {
5555, 6666);
// TripleItem class with Integers
TripleItem<Integer> triInts = new TripleItem<Integer>(9999,
// TripleItem class with Shorts
TripleItem<Short> triShorts new TripleItem<Short>((short) 99,
(short) 55, (short)66);
}
}
// Try methods from TripleItem
triInts.printAll();
System.out.println("Min: " + triInts.minItem() + "\n");
triShorts.printAll();
System.out.println("Min:
(9999,5555,6666)
Min: 5555
(99,55,66)
Min: 55
11
+ triShorts.minItem());](https://content.bartleby.com/qna-images/question/40a93fbf-cd84-46cf-939a-402485a39dd9/548cc878-3a6f-4874-81de-814634ee5169/5tvkh3_processed.png)
Transcribed Image Text:Tripleltem Manager.java:
public class TripleItemManager {
public static void main(String[] args) {
5555, 6666);
// TripleItem class with Integers
TripleItem<Integer> triInts = new TripleItem<Integer>(9999,
// TripleItem class with Shorts
TripleItem<Short> triShorts new TripleItem<Short>((short) 99,
(short) 55, (short)66);
}
}
// Try methods from TripleItem
triInts.printAll();
System.out.println("Min: " + triInts.minItem() + "\n");
triShorts.printAll();
System.out.println("Min:
(9999,5555,6666)
Min: 5555
(99,55,66)
Min: 55
11
+ triShorts.minItem());
Transcribed Image Text:Tripleltem.java:
public class TripleItem <TheType extends Comparable<TheType>> {
private TheType iteml; // Data value 1
private TheType item2; // Data value 2
private TheType item3; // Data value 3
public TripleItem(TheType il, TheType 12, TheType i3) {
item1
item2
item3
}
// Print all data member values
public void printAll() {
System.out.println("(" + item1 +
")") ;
}
il;
12;
13;
// Return min data member value
public TheType minItem() {
TheType minVal;
item
}
minval iteml;
if (item2.compareTo (minVal) < 0) {
minval = item2;
}
if (item3.compareTo (minVal) < 0) {
minVal =
item3;
}
return minVal;
+ item2 +
I
// Holds min item value, init to first
+ item3 +
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